Automated Validation of Capillary Refill Time Measurements Using Photo-plethysmogram from a Portable Device for Effective Triage in Children

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dc.contributor.authorKarlen, Walter
dc.contributor.authorPickard, Amelia
dc.contributor.authorDaniels, Jeremy
dc.contributor.authorKwizera, Arthur
dc.contributor.authorIbingira, Charles
dc.contributor.authorDumont, Guy
dc.contributor.authorAnsermino, J. Mark
dc.date.accessioned2022-05-27T14:57:10Z
dc.date.available2022-05-27T14:57:10Z
dc.date.issued2011
dc.description.abstractCapillary refill time (CRT) is an important tool for the clinical assessment of trauma and dehydration. Indeed, it has been incorporated into advanced life support guidelines as part of the rapid assessment of critically ill patients. However, digitalized CRT techniques are not readily available and the standard assessment based on the visual inspection of CRT lacks standardization and is prone to a high inter-observer variability. We present an algorithm for the automatic validation of the CRT measurement on the finger using photo-plethysmogram recordings on a small portable device. It is based on a set of deterministic rules for the classification of finger pressure and regular plethysmographic pulses. Validation studies using the classification of 93 pediatric recordings from Canada and Uganda showed that the novel algorithm reliably detects invalid CRT measurements (sensitivity 98.4%). This includes patterns such as insufficient pressure, low perfusion signals, and artifacts. Since our device consists of widely available components already in use, the promising results suggest that the algorithm could be readily integrated in operating rooms and intensive care units around the world. This more robust assessment of CRT would produce a more powerful diagnostic tool for clinical triage in critical care settings.en_US
dc.identifier.citationKarlen, W., Pickard, A., Daniels, J., Kwizera, A., Ibingira, C., Dumont, G., & Ansermino, J. M. (2011, October). Automated validation of capillary refill time measurements using photo-plethysmogram from a portable device for effective triage in children. In 2011 IEEE Global Humanitarian Technology Conference (pp. 66-71). IEEE.en_US
dc.identifier.urihttps://ieeexplore.ieee.org/abstract/document/6103610/
dc.identifier.urihttps://nru.uncst.go.ug/handle/123456789/3586
dc.language.isoenen_US
dc.publisherGlobal Humanitarian Technology Conferenceen_US
dc.subjectphoto-plethysmogramen_US
dc.subjectcapillary refill timeen_US
dc.subjectpulse oximeter monitoringen_US
dc.subjectanesthesiaen_US
dc.subjectchildrenen_US
dc.subjectsegmentationen_US
dc.subjectclassificationen_US
dc.titleAutomated Validation of Capillary Refill Time Measurements Using Photo-plethysmogram from a Portable Device for Effective Triage in Childrenen_US
dc.typeArticleen_US
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